发明名称 |
Method and apparatus for preparing a bonding wire |
摘要 |
A method and an apparatus for preparing a bonding wire, such as gold wire, drawn in contact-free manner from a bonding wire spool mounted in rotary manner about its longitudinal axis and supplied to a bonding device for forming circuits on electronic components. The apparatus constructed as a subassembly essentially comprises an electromotively-driven bonding wire spool carrier arranged on a support plate and a removal station provided with an optronic sensor. The bonding wire is deflected by means of air flows (P' or Q') for forming a bonding wire reserve in the removal station and the wire position is scanned by the optronic sensor. In the case of a decreasing bonding wire reserve, a signal is produced as a function of the bonding wire position, which is processed in a signal evaluation unit and is transmitted to a control unit, by means of which an electromotive drive operatively connected with the spool carrier is operated.
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申请公布号 |
US4909431(A) |
申请公布日期 |
1990.03.20 |
申请号 |
US19890353688 |
申请日期 |
1989.05.18 |
申请人 |
JAPICHINO, EMANUELE;MEISSER, CLAUDIO |
发明人 |
JAPICHINO, EMANUELE;MEISSER, CLAUDIO |
分类号 |
B65H51/16;B23K20/00;B65H59/36;H01L21/00;H05K13/06;(IPC1-7):B23K20/26;H01L21/60 |
主分类号 |
B65H51/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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